Nano-review of Ebay 118mm 500W halogen floodlight lamp replacement

[Mike Tomlinson]

This one:

Review follows:

It is crap. It wouldn't illuminate the inside of a matchbox.

That is all.

[ARW]

And you thought a 1000Lm replacement for a 9000Lm light would be a good match?

Added to which the LED seems to be a 360deg version so it wastes 30% of it's light on the reflector of the lamp.

[Chris French]

In message , ARW writes

We did say :-) Glad to have it confirmed :-)

[charles]

I reckon they gave as good an output as a 150watt halogen and they last a lot longer

[Chris French]

In message , charles writes

Probably not as a much as a 150W halogen, which is going to be 2000+ lumens, more like 100W.

But Mike was replacing a 500W halogen, which would have been about 9000 lumens, so about 9x brighter.

[DerbyBorn]

How many degrees does a Halogen Tube illuminate?

[Mike Tomlinson]

En el artículo , ARW escribió:

You didn't read the original thread. I didn't /want/ a 500W equivalent, something approximating to about 250W would have been fine as it only illuminates a small area.

It was only a fiver delivered from China and I was curious to see if it was any good. Nothing ventured, nothing gained.

I ordered that one precisely because it uses the reflector in the same way as the original halogen tube. The reflector is bright and clean, and has dimples in it that scatter the light, which coming from LED, is quite directional. I really doubt 30% is wasted.

I would say it's about equivalent to a 100W incandescent, which is what some people suggested in the original thread. Having seen it working in the dark last night, I think I'll leave it in as it's adequate. it's just a big change from the f-off 500W it replaced. It goes on and off a lot in the night so the energy saving will be worth it.

There's another light on the side of the house, I may try one of the alternatives: the wedge-shaped one with LEDs on the front, like ebay

351337931867.

Again, this is just out of curiosity. I asked for recommendations for replacement lamps and got none. Merely thought people would be interested to hear about my experiences.

[Mike Tomlinson]

En el artículo , charles escribió:

Ta. I'm going to leave it in a while and see how it goes. May try one of the wedge-shaped ones I linked to in another post.

[Mike Tomlinson]

En el artículo , Chris French escribió:

And I did say I didn't want a 500W equivalent replacement. But usenet is write-only for some people.

[Chris French]

In message , Mike Tomlinson writes

Yes, sorry Mike I did remember that, I was more replying to Charles about the relative brightness of bulbs and pointing out why it would have seemed a lot dimmer

[ARW]

I missed your original post:-(

After a bit of searching I have found it. You said in that thread (after buying the LED)

"I chose this one as it has LEDs all the way round unlike some of the alternatives, so it actually uses the reflector in the fitting."

That is the wrong way to use linear LEDs. It's their directional ability that allows them to be classed as equivalents to the lamps they are replacing! Not using the reflector with all the 10W light only on one side of your lamp would give a much brighter output.

All the LED flood lights I have fitted have nowhere near as much beam spread as any halogen light but they are getting better.

If you do buy the other LED which does not use the reflector I would be most interested in seeing how it compares with the first LED.

Cheers

[ARW]

360, but some of it passes back through the tube via the reflector and the halogen tube is smaller.

[Mike Tomlinson]

En el artículo , ARW escribió:

I've ordered it. Note it claims to be 15W as opposed to 7W for the one I reviewed.

This one:

the J118 15W 48 LED one.

50k hour lifetime. H'm. Not sure I believe that :)

It's coming from China so will be a while. Will report back when I have it in my hot sticky little hands.

cheers.

[Dave Plowman (News)]

I bought the 30w LED floodlights Lidl had on offer a few months ago. They appear to have only the one LED, but it plus the reflector gives an extremely wide and even spread of light. If anything, better than the halogen units they replace. But nothing like as much light. However, they are bright enough for the task here.

When I see statements claiming LED gives about 10 times the light watt for watt over halogen, I simply don't believe them. None of the ones I've tried gets anywhere near that.

[dennis]

They have lots of LEDs. The little module in the middle has a load of surface mount LEDs on it. Probably 60+ for a 30W one.